Dust-collector for middlings-purifiers



(No Model.)

3 SheetsSheet -1.

a A. WOLF.

DUST COLLECTOR FOR .MIDDLINGS PURIPIERS, 6

Patented Jan. 3', 1882.

N @Nnw W PETERS. Phntmulhognphcr. Wanhinglon, D: C.

(N o ModeLf 1 3 Sheets-Shet s.

A. WOLF.

DUST COLLECTOR FOR MIDDLINGS PUR-IFIERS,&0. No. 251,985; Patented Jan. 3,1882.

M W A N. PETERS. PhcilrLilhngmpmr. Washinghn, DC.

UNITED STATES PATENT O FICE.

-AUGUSTUS WOLF, OF ALLENTOWN, ASSIGNOR OF ONEJEIALF TO D. L.

HAMAKER, OF EAST HEMPFIELD, PENNSYLVANIA.

DUST-COLLECTOR FOR MIDDLINGS-PURIFIERS, 80c.

SPECIFICATION forming part of Letters Patent No. 251,985, dated January 3, 1882.

' Application filed September 12, 1881. (No model.)

To all whom it may concern Be it known that I, AUGUSTUS WOLF, a citizen of the United States, residing in Allentown, Pennsylvania, have invented certain Improvements in Dust-Collectors for Middlings- Purifiers, &c., of which the following is a specification. e

The object of my invention is to so construct a dust-collector for middlings purifiers and analogous machines that it will be self-cleaning and will effectually prevent the escape of dust into the room in which the machine is situated.

In the accompanying drawings, Figure 1, Sheet 1, is a side view of a middlings-purifier provided with my improved dust-collector, the latter being shown in section; Fig. 2, Sheet 2,

an enlarged section of the dust-collector; and

Fig. 3, Sheet 3, a sectional plan of Fig. 2.

A is a middlings-purifier or other analogous machine of any of the usual constructions, hav- I in g a discharge-passage, c, and exhaust-fan F.

In order to prevent the dissemination of dust from the machine throughout the mill or throughout the room in which the machine is situated, I use a dust-collector consisting of a series of bags or cylinders, S, S, and S of textile or fibrous material of such a character that while it will retain the fine dust and particles discharged by the machine it Will permit the free escape of the air. The lower end of the central bag, S, is connected to the dischargespout of the fan F, and the lower end of the outer bag, S is conhected to a discharge hopper or spout, X, the intermediate bag being connected to a ring at the lower end. The upperend of the outer bag, S is closed, but the inner bags, S and S, are open at the top. The blast of air, carrying with it the fluff and fine dust, enters the central bag, S, which communicates at the top with the space between the bags S and S and with the space between the latter and the bag S, the air escaping through the interstices between the threads of which the bags are composed, but the dust and flufi being retained by the bags and prevented from escaping with the air.

In order to prevent the clogging of the bags by the dust, I find it necessary to agitate said bags, so as to shake down the dust which accumulates upon their inner surfaces and keep them clear for the passage of air. This I effeet by connecting the upper end-of each of the bags by means of suitable cords to an arm, W, hung to a bracket on the ceiling of the room in which the machine is situated, this arm being acted upon by a spring, w, and by a crank-pin, w, on a wheel, Y, which is caused to rotatein the direction of the arrow, so that there will be a gradual depression of the outer end of the arm and of-the bags hung thereto, followed by a sudden elevation or upward jerk of the same, due to the action of the spring to on the arm W, thus effectually dislodging any particles which may be adhering to the inner surfaces of the bags.

Whipping cords yare combined with the out er bag, S these cords being connected to the bag at the upper and lower ends, so that as the upper end of the bag is depressed the cords will hang slack, but as the bag is drawn up the cords will he suddenly drawn tight, and will thus be caused to strike upon the outer surface of the bag and aid in dislodging the dust from the inside of the same. The inner bags,

S and S, may also be furnished with whippingcords similar to the cords y, if desired Although I have shown a dust-collector consisting of three bags, more or less than this number may be used, if desired, as the size of the machine and the character of the discharge therefrom may suggest.

I claim as my invention- 1. The combination, in a dust-collector for middlings-purifiers, of one or more suspended bags, a dust-supplying spout communicating with the interior of the same, and mechanism for imparting a vertical shaking or jerking motion to the said bag or bags, as set forth.

2. The combination of the dust-supplying spout, the inner bag, S, connected to the said spout at one end and open at the opposite end,

- the discharge-spout X, the outer bag, S closed at one end andconnected at the opposite end to said discharge-spout X, and mechanism for shaking the bags, as specified.

3. The combination of the pivoted arm W, the bag or bags suspended therefrom, the

crank-pin 0c, and the spring we, wherebya sud- In testimony whereof I have signed m yname IO den movement is imparted to the arm W on to this specification in the presence of two subits release from the control of the crank-pin, scribing witnesses. as set forth.

4. The combination of the suspended bag or v AUGUSTUS WOLF. bags forming the dust-coileetorand mechanism for imparting a vertical shaking or'jerking Witnesses: movement to said bag or bags with whipping- HARRY DRURY, cords y, as set forth. HARRY SMITH. 

